"Jupiterhost.Net" wrote:
>
> Howdy,
Hello,
> I'm looking to have a one liner version of this:
>
> my $xid = '';
> $xid = param('xid') if param('xid') =~ m/^\d+$/;
>
> Basically, if the param is numeric then assign it to $xid, other wise ''
> (IE empty but declared) Some thing like:
>
> my $xid = param('xid') if param('xid') =~ m/^\d+$/ || '';
>
> But I know that that is not right, what am I missing?
>
> I could do the ? : ; dance but I'm not sure 'my' would stay in the scope
> I need it in.
This will work if param('xid') returns anything but undef:
my ( $xid ) = param( 'xid' ) =~ /(^\d+$|)/;
John
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